<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <!-- 1. 准备容器 -->
  <div id='app'>
    <ul>
      <li v-for="item in list">{{item}} </li>
    </ul>
    <button @click="sort">走一走</button>
    <!-- 4. 渲染数据 -->
  </div>
  <!-- 2. 引入vuejs -->
  <script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script>
  <script>
    // 3. 创建Vue实例
    const app = new Vue({
    el: '#app',
    data: {
      list:[
         '程序员',
         '帅哥',
         '美女'
      ]
    },
    methods:{
      sort(){
        this.list.push(this.list[0])
        this.list.splice(0,1)
      }
    }
    })
  </script>
</body>
</html>